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APPARATUS FOR ELEVATING THE GOVERS 0F GAS PURIFIERS. V No. 396,332. vPatented Jan. 15, 1889.

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APPARATUS FOR ELBVATING THE COVERS DP GAS PURIFIERS. N0. 396,332 IPatented M11115, 1889.

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JAMES R. FLOYD, OF NEV YORK, N. Y.

APPARATUS FOR ELE VAT ING THE COVERS OF GAS-PURIFIERS.

SPECIFICATION forming part of Letters Patent No. 396,332, dated January15, 1889.

Application filed June 2, 1888. $erial No. 275,811. (No model.)

To all whom it may concern.-

Be it known that 1, JAMES R. FLOYD, of the city, county, and State ofNew York, a citizen of the United States, have invented certainImprovements in Apparatus for Elevating the Covers of Gas-Purifiers, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

My invention relates to an apparatus for raising the cover of agas-purifier by hydraulic power, in which a cylinder mounted on thecover-carriage has the rod of its pis ton connected to the cover, and apump is provided for forcing fluid under pressure into the cylinder toraise the piston, and hence elevate the cover on the carriage; and myinvention consists in the combination, in said apparatus, with severalcylinders therein and a force-pump common to all said cylinders, of theh ereinafter-described con duils connecting the pump and the cylindersand the valves therein intermediate said pump and cylinders, whereby auniform pressure of the fluid may be maintained in each of the severalcylinders, for the purpose hereinafter set forth.

Figure 1 is an elevation in perspective of a gas-purifier, its cover,and the carriage thereof containing my invention. Fig. 2 is a verticalsection of one of the cylinders, and Fig. 3 is a plan of the cylindersand pump and the system of fluid conduits and their valves containing myinvention.

A is the gas-purifier. thereof.

B BB B represent several cylinders mounted on the frame of the carriageB and usu ally one at each of the four corners thereof These cylindersmay be made or provided with a wide external flange, 1), by which theymay be conveniently mounted on the carriage. Each cylinder has a piston,b, the rod 1) of which is connected to the cover A, usually one to eachcorner, as shown.

C is a pump for forcing fluid to the several cylinders B, the fluidentering by suitable connections at the lower end of the cylinder belowthe piston, as shown at c, Fig. 2.

My present improvement consists in the combination, with the severalcylinders and the pump, in the structure constructed sub- A is the coverstantially as above described, of pipes or fluid-conduits leading fromthe force-pump to each of the cylinders, together with valves located insaid piping or conduits, one intermediate each cylinder individually andsaid pump, whereby a uniform or equal force of the liquid driven by thepump maybe exerted upon the piston in each of the several cylinders. I

At D D D D are shown pipes leading to each of the several cylinders B BB B said cylinders being shown as four in number in the drawings. Thesepipes are conveniently placed along the longitudinal sides of the frameB" of the carriage, leading toward each other on the respective sidesfrom the opposite corners, as shown.

At E is shown piping leading from the pump to the several pipes D D D Dthis piping consisting, preferably, of sections 6 6, leading from theopposed ends of both the pipes D D and D D respectively, on the oppositesides of the carriage and extending to about the center of thecarriage-frame, where they are united to a section, 6 connecting withthe pump, as shown. A standpipe, 6 into which the several sections 6 e 6open, is preferably provided at the junction of said sections at thecenter of the carriageframe, as shown.

At d cl d d are shown valves located one in each of the several pipes DD D D respectively, between the cylinder, to which each said pipecommunicates, and the junction of each said pipe with the piping leadingto the pump, as shown. For conveniently operating these valvesindividually each valve may be provided with a rod, (1 and all the saidrods may lead to that side of the carriageframe on which the pump 0 islocated, where each may be provided with an operating lever, (Zfulcrumed or pivoted on the carriage-frame, as shown.

The object of my described improvement is to enable the cover of thepurifier to be raised by the pistons of the several cylinders uniformlyat the several. points of connection of the piston-rods to the cover,and thus to avoid the tilting of the cover, and .hence the binding ofits edges or edge -flanges against the walls of the purifier around itstop, as has been found to occur in the elevating apparatus as heretoforeconstructed, in which the fluid-conduits leading from the pump to theseveral cylinders have been given a permanently-uniform capacity or areaof discharge into each cylinder. \Vhen thus constructed, the greatestpressure has been cX- erted by the fluid upon the pistons of thecylinders nearest to the pump, and hence these pistons have been forcedupward in advance of those of the remaining cylinders, causing the heavycover to jam or bind,by its tilting, in the mouth of the purifier, andnecessitating the use of great force to liberate it, there by entailingserious delay in the operation of the apparatus.

It is evident that by means of my described improvement the workmanoperating the pump may readily control the force applied to each pistonof the several cylinders, so that the cover will rise from the purifierat a uniform rate at all points of its connection to the severalpistons.

My further improvement consists in a cap or head, F, arranged to closethe upper end of each cylinder, said cap having an aperture, f, to whichon each cylinder is connected a pipe, f, leading to a tank, f which isconveniently mounted on the carriage-frame, as shown, and preferablynear the pump. The leakage of the water or other fluid around eachpiston into the upper end of the cylinders will by this means bedischarged into the tank, and its overflow from and dripping over andupon the exterior of the cylinder, and consequent liability to rust thecylinder and the carriage-frame, as occurs when the cylinders are whollyopen at the top, are obviated, and cleanliness and durability in theapparatus are promoted.

The tank f is desirably connected to the pump 0, so that it will serveas a reservoir for the fluid used by the pump to operate thecylinder-pistons. This connection is shown at f the fluid returning tothe tank through the pump and this connection, when the cover is allowedto fall to its place in the purifier, thus promoting economy in theoperation of the apparatus.

lVhat I claim as my invention, and desire to secure by Letters Patent,is

1. In an apparatus for elevating the cover of a gas-purifier, thecombination, with the several described cylinders connected to thecarriage B and having the rods of their several pistons attached to thepurifier-cover at various points thereon, respectively, together with apump, C, for operating said pistons, of the described pipes severallyconnecting said pump with said cylinders, valves in said pipes located,one in each, intermediate said pump and said cylinders, and. rods foroperating said valves individually, substantially as and for the purposeset forth.

2. In an apparatus for elevating the cover of a gas-purifier, thecombination, with sev eral cylinders mounted on the cover-carriage andhaving the rods of their several pistons attached, respectively, to thecorners of the purifier-cover, together with a pump for operatin g saidpistons mounted on said carriage, of pipes extending longitudinally ofthe carriage and connected, respectively, to said cylinders and topipe-sections extending laterally of the carriage, a stand-pipe unitingsaid lateral pipe-sections, a pipe connecting said stand-pipe and thepump, and valves, located one in each of the longitudinal pipes, havingrods reaching to and provided individually with operating-levers on thatside of the earriage-frame on which the said pump is located, allsubstantially as audfor the purpose setforth.

In an apparatus for elevating the cover of a gas-purifier, thecombination, with several cylinders mounted on. the cover-carriage andhaving the rods of their several pistons attached, respectively, to thepurifier-cover at the corners thereof, together with a pump foroperating said pistons, of a tank mounted on said carriage and havingconnection with said pump, and pipes leading severally from an aperturein the upper head of each cylinder to said tank, substantially asdescribed, and for the purpose set forth.

JAMES R. FLOYD.

Vitnesses:

ARDEN S. FITCH, A. T. FALES.

